<template lang="html">
  <div class="ratingselect">
    <div class="rating-type">
      <span @click="select(2,$event)" class="block positive" :class="{'active': selectType===2}">{{desc.all}}<span class="count">{{ratings.length}}</span></span>
      <span @click="select(0,$event)" class="block positive" :class="{'active': selectType===0}">{{desc.positive}}<span class="count">{{positives.length}}</span></span>
      <span @click="select(1,$event)" class="block negative" :class="{'active': selectType===1}">{{desc.negative}}<span class="count">{{negatives.length}}</span></span>
    </div>
    <div @click="toggleCount($event)" class="switch" :class="{'on': onlyContent}">
      <span class="icon-check_circle"></span>
      <span class="text">只看有内容的评价</span>
    </div>
  </div>
</template>

<script>
const POSITIVE = 0;
const NEGATIVE = 1;
const ALL = 2;

export default {
  props:{
    ratings:{
      type:Array,
      default(){
        return [];
      }
    },
    selectType:{
      type:Number,
      default:ALL
    },
    onlyContent:{
      type:Boolean,
      default:false
    },
    desc:{
      type:Object,
      default(){
        return {
          all: '全部',
          positive: '满意',
          negative: '不满意'
        }
      }
    }
  },
  computed:{
    positives(){
      return this.ratings.filter((rating) => {
        rating.rateType === POSITIVE;
        
      });
    },
    negatives(){
      return this.ratings.filter((rating) => {
        rating.rateType === NEGATIVE;
      });
    }
  },
  methods:{
    select(type, event){
      if (!event._constructed) {
        return;
      }
      this.selectType = type;
      this.$emit('ratingtype.select',type);
    },
    toggleCount(event){
      if (!event._constructed) {
        return;
      }
      this.onlyContent = !this.onlyContent;
      this.$emit('content.toggle',this.onlyContent);
    }
  }
}
</script>

<style lang="less">
  .ratingselect{
    .rating-type{
      padding: 18px 0;
      margin: 0 18px;
      border-bottom: 1px solid rgba(7,17,27,0.1);
      font-size: 0;
      .block{
        display: inline-block;
        padding: 8px 12px;
        border-radius: 2px;
        margin-right: 8px;
        color: rgb(77,85,93);
        line-height: 16px;
        font-size: 12px;
        &.active{
          color: #fff;
        }
        .count{
          font-size: 8px;
          margin-left: 2px;

        }
        &.positive{
          background: rgba(0,160,220,0.2);
          &.active{
            background: rgb(0,160,220);
          }
        }
        &.negative{
          background: rgba(77,85,93,0.2);
          &.active{
            background: rgb(77,85,93);
          }
        }
      }

    }
    .switch{
      padding: 12px 18px;
      line-height: 24px;
      border-bottom: 1px solid rgba(7,17,27,0.1);
      color: rgb(147,153,159);
      font-size: 0;
      &.on{
        .icon-check_circle{
          color: #00c850;
        }
      }
      .icon-check_circle{
        display: inline-block;
        vertical-align: top;
        font-size: 24px;
        margin-right: 4px;

      }
      .text{
        font-size: 12px;
      }
    }
  }
</style>
